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Arch Capital Group Ltd.

ACGLN
Exchange
Nasdaq
Industry
Fire, Marine & Casualty Insurance
SEC CIK
0000947484

In the last 90 days, Arch Capital Group Ltd. insiders filed 0 open-market purchases and 1 sale; 4 institutions reported holding it in 13F filings for Q2 2026, worth $769.1K in total; no superinvestor holds it.

Other share classesACGLACGLO

13F holders, Q2 2026

Institutional positions in Arch Capital Group Ltd. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
4
0 vs. Q1 2026
Shares held
47.6K
+5.21K (+12.3%) vs. Q1 2026
Total value
$769.1K
+$67.0K (+9.5%) vs. Q1 2026
New holders
0
2 more added
Sold out
0
1 more reduced

Compare with Q1 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ACGLN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2026: 4 institutions
Q1 2021: 0 institutionsQ2 2021: 2 institutionsQ3 2021: 1 institutionQ4 2021: 3 institutionsQ1 2022: 3 institutionsQ2 2022: 2 institutionsQ3 2022: 2 institutionsQ4 2022: 2 institutionsQ1 2023: 1 institutionQ2 2023: 1 institutionQ3 2023: 1 institutionQ4 2023: 1 institutionQ1 2024: 2 institutionsQ2 2024: 1 institutionQ3 2024: 1 institutionQ4 2024: 1 institutionQ1 2025: 1 institutionQ2 2025: 2 institutionsQ3 2025: 2 institutionsQ4 2025: 4 institutionsQ1 2026: 4 institutionsQ2 2026: 4 institutions
Value heldQ2 2026: $769.1K
Q1 2021: $0Q2 2021: $1.04MQ3 2021: $2.00KQ4 2021: $278.0KQ1 2022: $288.0KQ2 2022: $126.0KQ3 2022: $123.0KQ4 2022: $112.6KQ1 2023: $133.6KQ2 2023: $89.8KQ3 2023: $39.7KQ4 2023: $49.8KQ1 2024: $52.2KQ2 2024: $47.6KQ3 2024: $50.1KQ4 2024: $49.3KQ1 2025: $46.0KQ2 2025: $37.2KQ3 2025: $42.2KQ4 2025: $700.0KQ1 2026: $702.1KQ2 2026: $769.1K
Institutions holding ACGLN and their total value by quarter
QuarterHoldersValue
Q2 20264$769.1K
Q1 20264$702.1K
Q4 20254$700.0K
Q3 20252$42.2K
Q2 20252$37.2K
Q1 20251$46.0K
Q4 20241$49.3K
Q3 20241$50.1K
Q2 20241$47.6K
Q1 20242$52.2K
Q4 20231$49.8K
Q3 20231$39.7K
Q2 20231$89.8K
Q1 20231$133.6K
Q4 20222$112.6K
Q3 20222$123.0K
Q2 20222$126.0K
Q1 20223$288.0K
Q4 20213$278.0K
Q3 20211$2.00K
Q2 20212$1.04M
Q1 20210$0

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding Arch Capital Group Ltd.; share changes are against Q1 2026.

Institutions holding ACGLN in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Iat Reinsurance Co Ltd.40,000$645.8K0.39%00.0%Unchanged
GAMMA Investing LLC3,897$63.5K0.00%+3,867+12,890.0%Added
First Command Advisory Services, Inc.1,955$31.9K0.00%+1,357+226.9%Added
The PNC Financial Services Group, Inc.1,712$27.9K0.00%−18−1.0%Reduced